![MCQ] What prevents backflow of blood inside heart during contraction?](https://d1avenlh0i1xmr.cloudfront.net/9d167496-c899-4df0-bccf-269b868d407b/valves-prevent-the-back-flow-of-blood-by-opening-and-closing-tightly-to-guide-the-flow-of-blood-in-specific-directions-01.jpg "MCQ] What prevents backflow of blood inside heart during contraction?")
MCQ] What prevents backflow of blood inside heart during contraction?
Back 4 Blood proves Valve carried Left 4 Dead by Crowbat | Bosses React - YouTube
Which of the following prevents blood in the ventricles from flowing back into the atria when the ventricles contract? (a) Pulmonary valve (b) Aortic valve (c) Atrioventricular valves (d) Pyloric sphincter (e)
Back 4 Blood proves Valve carried Left 4 Dead by Crowbat | Bosses React - YouTube
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